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matrenka [14]
3 years ago
14

Which of the following represents the sum 3+(-7)? Assume that red tiles represent negative numbers and blue tiles represent posi

tive numbers.
Mathematics
1 answer:
Travka [436]3 years ago
8 0

Answer:

were you supposed to attach a photo because I cant see it? All I can tell you 3+(-7)= -4

Step-by-step explanation:

You might be interested in
What is the least natural number which when divided by 3,5,6,8,10 and 12 leaves in each case remainder 2 but when divided by 13
bazaltina [42]

Answer:

962

Step-by-step explanation:

MMM for step by step its kinda just plug and check

962/3 = 320 R2

962/6 = 160 R2

962/8 = 120 R2

962/10 = 96 R2

962/12 = 80 R2

and finally 962/13 = 74

4 0
2 years ago
Divide 21a3 − 14a by -7.<br><br> What is the quotient?
AleksandrR [38]

Answer:

-3a^3 + 2a.

Step-by-step explanation:

21a3 − 14a /  -7

= 21a^3 / -7  -  14a / -7

= -3a^3 + 2a.

7 0
3 years ago
Identify the variable expression that is not a polynomial:. a: x+12. b: 33. c: x^9+y^3. d: y^9+27
mina [271]
The term polynomial comes from the words poly- which means "many" and -nomial meaning "terms". In mathematics, a polynomial is an expression that consists of variables and coefficients wherein it only utilizes addition, subtraction, multiplication and a non-negative integer. In the given options above, the variable expression that is not a polynomial is option C. x^9+y^3.
7 0
4 years ago
Use the discriminant to determine all values of k which would result in the graph of
Shalnov [3]

Answer:

k > 100

Step-by-step explanation:

y= x²+20x+k

if the graph doesn't intersect the x-axis it means it has no real roots so the discriminat has to be negative so will have imaginary roots

discriminant is

b²-4ac = 20²-4*1*k = 400-4k for this to be negative k has to be more then 100 so will have 400 - a number bigger then 400

k > 100 is the solution

7 0
3 years ago
Write an equation that models the sequence 400, 200, 100, 50, ...
Julli [10]
You're starting at 400. Each time you're cutting in half. 

So the common ratio is 1/2 which means the equation is

\Large y = 400(1/2)^{x-1}

which is in the geometric sequence format. So the answer is choice D
3 0
3 years ago
Read 2 more answers
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